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Calculation of maximum diameters/shape

Please find below some formulas to calculate the maximum diameter or shape diagonal that will fit on the punch (MD = Maximum Diameter).
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1.) Round -> MD = D
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2.) Square -> MD = a xWurzel aus 2
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3.) Square with radius -> MD = (a - 2 x R) xWurzel aus 2+ 2 x R
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4.) Rectangle -> MD =Wurzel aus a im Quadrat plus b im Quadrat
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5.) Rectangle with radius-> MD=Wurzel aus Klammer auf a minus 2 mal R Klammer zu im Quadrat plus Klammer auf b minus 2 mal R Klammer zu im Quadrat+ 2x R
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6.) Obround -> MD= b
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7.) Hexagonal -> MD= SW x1 durch Cosinus mal 30 Grad
or -> MD= SW x 1,155
illustration  
8.) Cross Forms-> MD=Wurzel aus a im Quadrat plus b im Quadrat

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